Widowmaker, Silent Shot

+1: Target opponent reveals their hand. You may choose a creature card from that hand. That player discards that card.
-3: You may destroy up to 1 target planeswalker. If you don't, you may have target creature get -3/-3 until end of turn.
-7: Put a Hit counter on target creature. Creatures with Hit counters on them have "When this creature dies, its controller loses the game."